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Two uncharged conducting spheres, A and ...

Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other as shown in the figure. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. How will the spheres be charged, if at all ?

A

Sphere A - 0, Sphere :- +

B

Sphere A - 0, Sphere :- +

C

Sphere A - 0, Sphere :- 0

D

Sphere A - +, Sphere :- -

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The correct Answer is:
D
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